Welcome to the site! You can actually just teach yourself. Just be sure to learn the basics first and practice them for a while before moving on to more complicated things such as casting. Take a look on the Newbie tab on the homepage of the site. It will give you an overview on the site. Research magick as much as you can and keep an open mind to many different paths of magick. Ask questions as you go along! I hope this helps a bit.
Yes this is true. However if you see a spell that claims to defy the laws of physics (ex. become a vampire, throw a fire ball, fly) this is obviously fake. Any spells within the "Fantasy" section are fake. Please refrain from becoming fluffy and take this site seriously. And also welcome!